MC9S12K Datasheet, PDF (85/126 Pages) Freescale Semiconductor, Inc – Microcontrollers

Device User Guide — 9S12KT256DGV1/D V01.09
Insure external VDD5 load will shunt current greater than maximum injection current. This will be the
greatest risk when the MCU is not consuming power; e.g. if no system clock is present, or if clock rate is
very low which would reduce overall power consumption.
A.1.5 Absolute Maximum Ratings
Absolute maximum ratings are stress ratings only. A functional operation under or outside those maxima
is not guaranteed. Stress beyond those limits may affect the reliability or cause permanent damage of the
device.
This device contains circuitry protecting against damage due to high static voltage or electrical fields;
however, it is advised that normal precautions be taken to avoid application of any voltages higher than
maximum-rated voltages to this high-impedance circuit. Reliability of operation is enhanced if unused
inputs are tied to an appropriate logic voltage level (e.g., either V_SS5 or V_DD5).
Table A-1 Absolute Maximum Ratings
Num
Rating
Symbol
Min
Max Unit
1 I/O, Regulator and Analog Supply Voltage
V_DD5
-0.3
6.5
V
2 _{Internal Logic Supply Voltage}¹
V_DD
-0.3
3.0
V
3 _{PLL Supply Voltage} ⁽¹⁾
V_DDPLL
-0.3
3.0
V
4 Voltage difference VDDX to VDDR and VDDA
∆_VDDX
-0.3
0.3
V
5 Voltage difference VSSX to VSSR and VSSA
∆_VSSX
-0.3
0.3
V
6 Digital I/O Input Voltage
V_IN
-0.3
6.5
V
7 Analog Reference
V_RH, V_RL
-0.3
6.5
V
8 XFC, EXTAL, XTAL inputs
V_ILV
-0.3
3.0
V
9 TEST input
V_TEST
-0.3
10.0
V
Instantaneous Maximum Current
10 _{Single pin limit for all digital I/O pins 2}
I_D
-25
+25
mA
Instantaneous Maximum Current
11 _{Single pin limit for XFC, EXTAL, XTAL3}
I_DL
-25
+25
mA
Instantaneous Maximum Current
12 _{Single pin limit for TEST4}
I_DT
-0.25
0
mA
13 Operating Temperature Range (packaged)
T_A
– 40
125
°C
14 Operating Temperature Range (junction)
T_J
– 40
140
°C
15 Storage Temperature Range
T_stg
– 65
155
°C
NOTES:
1. The device contains an internal voltage regulator to generate the logic and PLL supply out of the I/O supply.
The absolute maximum ratings apply when the device is powered from an external source.
2. All digital I/O pins are internally clamped to V_SSX and V_DDX, V_SSR and V_DDR or V_SSA and V_DDA.
3. These pins are internally clamped to V_SSPLL and V_DDPLL
4. This pin is clamped low to V_SSR, but not clamped high. This pin must be tied low in applications.
Freescale Semiconductor
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